水是生命之源。人可以几天不吃饭,但不能几天不饮水。不管是夏天还是冬天,每个人都应重视水的补充。一般来说,因频繁呕吐、腹泻以及天气炎热、剧烈运动出汗过多,给人体内环境造成的急性“干旱”,人们容易发现,也容易防范。但是,由于人体生理功能减退或衰老而造成的体内慢性“干 Water is the source of life. People can not eat for a few days, but can not drink water for a few days. Whether it is summer or winter, everyone should pay attention to the water supplement. In general, acute vomiting, diarrhea, and over-sweating, strenuous exercise cause acute “drought” to the human body and are easily detectable and easily preventable. However, the body is chronically “dry” due to diminished or aging human physiology